Patents for January 2023
Patents for January 2023 as compiled by the editors of Rubber World Magazine
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Takeaways from a half century in the latex industry
I retired recently, but still feel contributive and expect to be so for quite a while. The expression, “If you enjoy what you do, you’ll never work a day in your life,” sums up what I believe. It helps to have a positive attitude, as well. This attitude provides resilience and sustainability in the face of uncertain outcomes. After more than 50 years in the latex industry, I would like to share a few of my takeaways from those years.
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Characterizing rubber by correlations between shear heating parameter, minimum torque and dynamic complex viscosity
Correlations between shear heating
parameters from processing tests, minimum torque and dynamic complex viscosity provide consistent results about viscoelastic behavior of rubber compounds.
Aircraft tire compounding using Prophene to improve properties
Aspects of aircraft tire types, performance needs and use of graphene to improve performance are discussed
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Rubber compounding additives to remove resorcinol, cobalt and formaldehyde
New options containing no
resorcinol and cobalt, and eliminating
formaldehyde emissions are examined.
Post IEC Daily
This follow-up to the 2022 International Elastomer Conference and Expo, held last month in Knoxville, Tennessee, and published for the Rubber Division, ACS by Lippincott & Peto, Inc., includes photographs and summaries of IEC events, including the Rubber Division, ACS Service Award recipients, 2022 scholarship winners, the Experience Elastomers Student Outreach Program, nomination information for the Rubber Division, ACS 2024 Science & Technology Awards, 2022 Expo exhibitors, and details on future International Elastomer Conferences, including locations through 2029.
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Are all thermoplastic polyolefins created equal?
Thermoplastic polyolefin (TPO) is one of the fastest growing commercial roofing systems on the market. Developed in Europe in the 1970s, TPO was introduced to the U.S. market in the late 1980s and has become the dominant installed roof system in the industry; now used on 53% of commercial roofs, according to the American Institute of Architects.
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Taraxacum kok-saghyz latex quantification and extraction from roots
Latex purification methods have been developed from TK roots, adapting methods used for the guayule shrub.
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Electrically conductive elastomers based on NR and polyaniline
Natural rubber is an electrically insulating material, but introduction of conductive fillers like carbon based materials (carbon black, graphite, carbon nanofibers or nanotubes) or metal fillers can increase the conductivity of the resulting composite. These materials are frequently used for electromagnetic/radiofrequency interference (EMI/RFI) shielding, and laboratory and military uses.
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Carbon nanotubes with organosilane functionalization improve abrasion/ rolling resistance
Rubber composites with individualized carbon nanotubes improve tire tread compound performance for use in electric vehicles.
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